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Dell PowerStore Configuring Volumes

Migrate vVols to another appliance (advanced)

Only use this feature to migrate individual vVols to another appliance in the cluster when it is not possible to migrate the entire vVol-based VM.

About this task

NOTE:As a best practice, migrate the entire vVol-based VM using the procedure provided in Migrate vVol-based VMs to another appliance. Migrating the entire vVol-based VM guarantees colocation of all of the vVols that make up the VM for optimal performance. Migrating an individual vVol should only be done by advanced administrators in limited cases, such as when the vVol has certain capacity and IO requirements that necessitate placement of the vVol on a specific appliance.

When you migrate a vVol, all associated fast clones and snapshots also migrate with the storage resource. During the migration, additional work space is allocated on the source appliance to facilitate data movement. The amount of space that is needed depends on the number of storage objects and amount of data being migrated. This work space is released and freed up after the migration is complete.


  1. Under Storage, select Storage Containers.
  2. Select the storage container that contains the vVol that you want to migrate and select the Virtual Volumes card.
  3. To display vSphere host names and the appliances on which vVols are located, select Show/Hide Table Columns, then select vSphere Host Name and Appliance to display those columns in the Virtual Volumes card.
  4. Select the vVol to migrate and select Migrate.
    The Migrate slide-out panel is displayed.
  5. Select an appliance that best meets the requirements for the vVol that you are migrating.
  6. Select Next.
    A migration session with a status of Pending is created in the background.
  7. Select Finish.
    The migration session is displayed on the Migration Actions page, and then the Required Action for Migration slide-out panel is displayed.
  8. Select Start Migration and click Migrate Now.
    Depending on the amount of data that is being migrated, it may take several minutes, hours, or days to complete the migration. It may also have an impact on the overall system performance.

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